SKU # 91790

M770-ETX-CG-WH

Enclosed in these beautiful, all-fiberglass enclosures are our maximum-performance, M-Series 7.7-inch coaxial tower speakers. Specifically tuned for tower enclosure applications, these coaxial drivers deliver clean, loud audio that can be heard well beyond the boat when mounted up high.

The enclosures feature machined aluminum accents and each includes a very sturdy, spline-based mount, designed to mate with one of our clamp systems (sold separately, and available to fit a wide range of pipe diameters). The wire exits through the center of the mount, staying high and dry, and out of sight. Professional installation is strongly recommended.

For best results, we recommend powering these systems with an amplifier in the 75-150 W per channel range.

Like all JL Audio marine speakers, this system is built to withstand a real saltwater marine environment and deliver years of listening enjoyment.

Sold as a pair.

General Specifications

Continuous Power Handling (RMS)

100 W

Peak Music Power

225 W

Recommended RMS Amplifier Power (per Ch.)

40 - 175 W

System Efficiency

91.0 dB @ 1 W / 1 m

System Nominal Impedance

4 Ω

System Frequency Response

45 Hz - 25 KHz ± 3 dB

Physical Specifications

Enclosure Diameter (A)

8.5 in / 216 mm

Enclosure Depth (B)

13.98 in / 355 mm

Height including Mounting Clamp Receiver* (C)

9.6 in / 244 mm

Mounting Clamp Receiver / Enclosure Offset (D)

1.10 in / 28 mm

*Mounting Clamps Required (Sold Separately)

Marine Materials / Testing

Detailed Information: Building serious marine products requires a real commitment to environmental testing and materials specification. To this end, JL Audio has invested in Ultraviolet testing chambers (to simulate years of sun exposure) and Salt Fog chambers (to simulate years of exposure to salt-water environments. This testing is critical to building products that will not only sound great in your boat, but will also sound great for many, many years.

Precision Built in U.S.A.

Summary:JL Audio's Miramar, Florida loudspeaker production facility is one of the most advanced in the world.

Detailed Information:At a time when most audio products are built overseas, JL Audio’s commitment to in-house loudspeaker production continues to grow. All W7’s, W6’s, TW5’s, TW3's, TW1's, W3v3’s and some of our ZR products. We also build our Marine Speaker Systems, Home Subwoofers, Stealthbox® products and the vast majority of our enclosed subwoofer systems in Florida.

To pull this off in a competitive world market, our production engineering team has created one of the world’s most advanced loudspeaker assembly facilities. This commitment to state-of-the-art technology allows our highly skilled workforce to efficiently build JL Audio products to extremely high quality standards.

While it is also feasible to build good quality products overseas (and we do build some of our products in Europe and Asia), it can be challenging when the product’s technology is innovative or complex. Since most of our premium loudspeakers incorporate proprietary, patented technologies requiring specific assembly techniques, we prefer that the people who design them have close access to the people manufacturing them.

U.S.A. Warranty Information - Marine Speaker Systems and Subwoofers

JL Audio Marine Speaker Systems and Subwoofers are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. JL Audio will, at its discretion, repair or replace any products that exhibit defects in materials and/or workmanship during the warranty period.

Please hold on to your sales receipt! All warranty service requires original sales receipt documentation. The warranty only applies to the original purchaser from an authorized retailer. Note: Products purchased from unauthorized dealers are not covered under warranty.

Warranty Limitations

The following is not covered under JL Audio's warranty program:1. Product with defaced, altered or removed serial numbers (no valid, legible serial number = no warranty).2. Product owned by anyone other than the original purchaser from an authorized JL Audio dealer. (The warranty is not transferable and will not apply to products purchased from unauthorized dealers.)3. Product that has been physically abused (run over by a car or beat with a hammer, for example).4. Product that has not been installed according to the instructions in the owner's manual5. Product in which repair and/or modification has been attempted by unauthorized parties6. Product damaged cosmetically due to improper handling or normal wear and tear7. Product damaged in an accident, due to criminal activity (attempted theft, gunshot damage, etc.) or by 'acts of God' (flooding, lightning, locusts, etc.)8. Custom finishes or other cosmetic treatments applied to products. (JL Audio will not be responsible for restoring or maintaining any custom finishes)9. Installation and shipping costs associated with removing, re-installing or shipping the product to JL Audio for warranty serviceAsk your dealer for details on warranty limitations.

If you need Service on your JL Audio Product:All warranty returns should be sent to JL AUDIO freight prepaid through an authorized JL AUDIO dealer and must be accompanied by proof of purchase (a copy of the original sales receipt.) Direct returns from consumers or non-authorized dealers will be refused unless specifically authorized by JL AUDIO with a valid return authorization number. Warranty expiration on products returned without proof of purchase will be determined from the manufacturing date code. Coverage may be invalidated as this date is previous to purchase date. Return only defective components. Non-defective items received will be returned freight-collect. Customer is responsible for shipping charges and insurance in sending the product to JL AUDIO. Freight damage on returns is not covered under warranty. Always include proof of purchase (sales receipt).

"We tested a boat with a complete JL Audio system... The clarity and power emitted by this system was second to no other boat system on any boat, of any size, we have ever heard. It was a truly amazing experience."– Tony Adelo, Mayor's Cup Magazine

"My JL Audio sound system can turn a bad day of fishing into a fun day on the water."– Captain Rimmer Covington, Owner - Mexican Gulf Fishing Company

JL Audio Marine Audio products are used as Original Equipment by these discerning Boat Manufacturers: